feat: add test data cleanup utility script

Interactive CLI for managing test organizations, users, and tenant schemas.
Supports list, delete-org, delete-user, purge-all, and reseed commands
with dry-run mode and safety guards for platform owner protection.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/package.json

@@ -4,7 +4,8 @@
   "private": true,
   "description": "Standalone scripts for HOA LedgerIQ platform (cron jobs, data fetching)",
   "scripts": {
-    "fetch-cd-rates": "tsx fetch-cd-rates.ts"
+    "fetch-cd-rates": "tsx fetch-cd-rates.ts",
+    "cleanup": "tsx cleanup-test-data.ts"
   },
   "dependencies": {
     "dotenv": "^16.4.7",